// This program plays a tune when a button is pressed
//If you keep the button pressed, it loops continuously
// The first lines of program code below get everything setup on the Arduino
// The bit after "void loop()" is where the tune is created

/* define nicknames or aliases for things and values for constants   */
  #include "pitches.h"   // library of tones and their frequencies
  #define SPEAKER_PIN 8  // defines which pin of Arduino is connected to the loud speaker  
  #define BUTTON_PIN 6   // defines which pin of Arduino is connected to the push button                                       

void setup() {
//Tell Arduino how each pin should work i.e. as an output or input
  pinMode(SPEAKER_PIN, OUTPUT);         //enable Arduino to output to speaker on pin 8
  pinMode(BUTTON_PIN, INPUT_PULLUP);    //enable Arduino to use its pin 6 to check the push button
}

void loop() {   //the program code below repeats endlessly **********************************************

if (digitalRead( BUTTON_PIN) == LOW) { //Check if button pressed, if so, do following
 for (int i = 0; i < 3; i++) {
  tone(SPEAKER_PIN, NOTE_G4);   //Play a note
  delay(150);                   //For 150 milliseconds 
  tone(SPEAKER_PIN, NOTE_A5);   //Play a different note
  delay(150);
  tone(SPEAKER_PIN, NOTE_B5);
  delay(150);
  tone(SPEAKER_PIN, NOTE_D5);
  delay(300);
  tone(SPEAKER_PIN, NOTE_C5);
  delay(150);
  tone(SPEAKER_PIN, NOTE_A5);
  delay(150);
  tone(SPEAKER_PIN, NOTE_B5);
  delay(150);
  tone(SPEAKER_PIN, NOTE_G5);
  delay(300);
  noTone(SPEAKER_PIN);         //Stop Playing
 }
  tone(SPEAKER_PIN, NOTE_B6);
  delay(150);
  noTone(SPEAKER_PIN);         //Stop Playing
  delay(150);    
  tone(SPEAKER_PIN, NOTE_B6);
  delay(150);
  noTone(SPEAKER_PIN);         //Stop Playing
  delay(150);
  tone(SPEAKER_PIN, NOTE_B6);
  delay(150);
  noTone(SPEAKER_PIN);         //Stop Playing
  delay(150);    
  tone(SPEAKER_PIN, NOTE_B6);
  delay(150);
  noTone(SPEAKER_PIN);   
}
}
//End*****************************************************************************************************